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John Q. Public

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noun
  1. the average or typical U.S. citizen: an entertainment aimed at Mr. and Mrs. John Q. Public.

Origin of John Q. Public

An Americanism dating back to 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Word Origin and History for john q public

John Q. Public

n.

"average American citizen," attested from 1934.

Online Etymology Dictionary, © 2010 Douglas Harper
Idioms and Phrases with john q public

John Q. Public

see under John Doe.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.